Suppose a triangle has sides a, b, and c, and let (/) be the angle opposite the side of length a. if cos(/) > 0 what must be true? a. b^2 + c^2 < a^2 b. a^2 + b^2 = c^2 c. b^2 + c^2 > a^2 d. a^2 + b^2 > c^2

Suppose there is a simple index of three stocks, stock abc, stock xyz, and stock qrs. stock abc opens on day 1 with 4000 shares at $3.15 per share. stock xyz opens on day 1 with 5000 shares at $4.30 per share. stock qrs opens on day 1 with 6000 shares at $4.60 per share. the price of stock abc on day 8 begins at $3.50. the price of stock xyz on day 8 begins at $3.90. stock qrs opens on day 8 with a price of $4.50 per share. assume that each stock has the same number of shares that it opened with on day 1. what is the rate of change of this simple index over 1 week?

Divide: 1573 ÷ 7 = a) 222 r5 b) 223 r6 c) 224 r5 d) 224 r3

Evaluate the expression. (9 + 5)(3 + 2)0